Restructure three-pronged → knowledge-layers: collapse 11 files to 3, integrate into main architecture

- Rename 'three-pronged' folder to 'knowledge-layers' — prong metaphor
  was misleading (implied parallel tines), replaced with epistemic layers
  (deductive base, empirical middle, probabilistic oracle — vertical stack)
- Collapse 11 overlapping files into 3 coherent documents:
  - knowledge-layers/_index.org: core framework (two engines + one store,
    World Model formula, 0-14 layer table, provenance store design,
    conflict resolution, cold-start, stage mapping)
  - knowledge-layers/practical-implications.org: design-world-aware-of-
    physics, 10 powers, Schafmeister existence proof, epistemic transparency
  - knowledge-layers/neurological-empirical.org: neural networks in
    provenance framework (kept intact)
- Relocate wolfram/mathematica and Schafmeister docs to ideas/viability/
- Integrate into main architecture _index.org:
  - Gate: expanded from two vectors (ACL2+LLM) to three (deductive,
    provenance/empirical, LLM oracle)
  - Autodidactic loop: split into Track 1 (deductive hardening, fast)
    and Track 2 (empirical validation, slow, experimental-feedback-driven)
  - See also: added Knowledge Layers cross-reference
- Add all-lisp geometry engine note (ideas/lisp-geometry-engine.org) as
  concrete illustration of the empirical layer's effect on design work
- Rebuild site: 148 files, 0 errors

projects/flags/legal-structure-practical-setup.org

@@ -3,7 +3,7 @@
 :ID:       legal-structure-practical-setup
 :CREATED:  [2026-05-23 Sat]
 :END:
-#+title: Legal Structure — Practical Setup Guide
+#+title: Legal Structure
 #+filetags: :passepartout:legal:corporate:setup:action:
 
 Recommended structure: Delaware C-Corp (US OpCo) + BVI Business Company (IP Co). Trust layer deferred until significant personal wealth accumulates. This is a research document — exact costs and forms should be confirmed with a lawyer.